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Processing technology of quartz sand fracturing propping agent

A technology of fracturing proppant and processing technology, which is applied in the direction of drilling composition, production fluid, filter screen, etc., to achieve the effect of good technical performance, high sphericity and flow conductivity

Active Publication Date: 2019-11-15
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a processing technology for quartz sand fracturing proppant to solve the problem that many impurities adhered to the surface of quartz sand have been symbiotically integrated with sand particles due to the fact that quartz sand has long been buried in mountains

Method used

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  • Processing technology of quartz sand fracturing propping agent
  • Processing technology of quartz sand fracturing propping agent
  • Processing technology of quartz sand fracturing propping agent

Examples

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Effect test

Embodiment 1

[0033] The processing technology of quartz sand fracturing proppant includes the following steps:

[0034] A. Wet impurity removal

[0035] A1, hydraulic separation

[0036] The flotation of the mined quartz sand is carried out by the buoyancy of water. The sand-water content ratio of the sand-water mixture is 2:1, and the impurities such as soil contained in the quartz sand are separated. For the specific hydraulic flotation method, please refer to the applicant's 2019 "A method for sorting quartz sand" (application number 201910363491.9) was applied for on April 30, 2019. The hydraulic flotation method of this application is different from that of the disclosed patent, and the rest of the flotation settings are the same.

[0037] A2. Mechanical impurity removal

[0038] The sand-water mixture obtained in A1 is passed in the spiral sand washing machine 8, as figure 1 As shown, the spiral sand washing machine 8 is set obliquely, and the sand-water mixture is conveyed from t...

Embodiment 2

[0051] The only difference between this embodiment and Embodiment 1 is that no protrusion is provided on the helical blade. In this scheme, the arrangement of reducing protrusions reduces the friction between the sand grains and the spiral blade during the conveying process, and the effect of friction and impurity removal on the sand grains is weakened.

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Abstract

The invention belongs to the field of quartz sand processing, and particularly discloses a processing technology of a quartz sand fracturing propping agent. Mined quartz sand is preliminarily sorted by hydraulic action, sorted sand-water mixture is conveyed through a spiral sand washing machine, the water content of the sand-water mixture is reduced in the conveying process, and the water contentof the sand-water mixture is 5% - 20% when the sand-water mixture leaves the spiral sand washing machine. According to the processing technology of the quartz sand fracturing propping agent, the separation and impurity removal of the quartz sand can be well completed.

Description

technical field [0001] The invention belongs to the field of quartz sand processing, and in particular relates to a processing technology of a quartz sand fracturing proppant. Background technique [0002] Fracturing technology is more and more widely used in oil and gas exploitation. The main feature of fracturing technology is to drill a cylindrical channel deep into the bottom of the earth's crust through drilling construction, and then put metal pipes into the cylindrical channel and Holes are dug on the side wall of the metal pipeline, and the engineers send the fracturing fluid and a certain proportion of granular fracturing proppant into the pipeline through a high-pressure pump on the ground, and the fracturing fluid passes through the holes on the pipe wall Under the action of high pressure, it is shot into the rock formation adjacent to the outer wall of the pipeline to generate a large number of rock formation fissures. After these fissures are opened, granular fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/52B03B7/00B07B4/02B07B1/28B07B1/46C09K8/80
CPCB03B5/52B03B7/00B07B1/28B07B1/4609B07B4/025B07B2201/04C09K8/80
Inventor 熊帆熊鹰王正力李曙光
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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